UBE Screamer pot taper?

[soggybag]

The UBE Screamer schematic shows B500k gain pot would this be better as C500k? The volume pot is also shown as B100k was there a reason for this? I have a board ready and C500k and A100k pot on hand!



As a follow question. The gain calculation for the first stage would be the resistance at the input divided into the resistance across the feedback path, is that correct?

[willienillie]

Ibanez TS uses A500K for gain, B100K for volume.  I think A100K for volume would be an improvement.  C500K for gain would be all bunched up.  But you could wire it backwards, call it a "Cleaner" control.  Or just use it until your next parts order.

[PRR]

> The gain calculation

U1B U1C figure a little differently because one side goes down and the other side goes up. This with a LINear pot makes a semi-log response which is pretty neat. With a tapered pot it might go from max to 'silent' in 20 degrees.

[soggybag]

Thanks for the replies! I think a can dig up a linear pot and add some wires. I have one with the legs on I was hoping to use up.